diff options
Diffstat (limited to 'newlib/configure.ac')
| -rw-r--r-- | newlib/configure.ac | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/newlib/configure.ac b/newlib/configure.ac index d95000db9..b4d11f5e3 100644 --- a/newlib/configure.ac +++ b/newlib/configure.ac @@ -3,7 +3,23 @@ dnl Process this file with autoconf to produce a configure script. AC_INIT([newlib],[NEWLIB_VERSION]) AC_CONFIG_SRCDIR([libc]) -AC_CONFIG_HEADERS([_newlib_version.h:_newlib_version.hin newlib.h:newlib.hin]) + +dnl Since we can't control what defines autoheader picks up (various autoconf +dnl macros will add their own), filter out all the ones w/out a _ prefix. All +dnl the ones we want to export use a _ prefix, and all the rest we don't want +dnl to export as it'll pollute the namespace of newlib users. +dnl NB: newlib.h must be the first AC_CONFIG_HEADERS call for autoheader. +AC_CONFIG_HEADERS([newlib.h:newlib.hin], [sed -i.tmp -e '/^#define [^_]/d' -e '/^\/\* #undef [^_]/d' newlib.h && rm -f newlib.h.tmp]) +AH_TOP([/* NB: The contents are filtered before being installed. */ + +#ifndef __NEWLIB_H__ +#define __NEWLIB_H__ 1 + +/* Newlib version */ +#include <_newlib_version.h>]) +AH_BOTTOM([#endif /* !__NEWLIB_H__ */]) + +AC_CONFIG_HEADERS([_newlib_version.h:_newlib_version.hin]) dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake. AC_CONFIG_AUX_DIR(..) |